809804622944 has 24 divisors (see below), whose sum is σ = 1594338622128. Its totient is φ = 404893226880.

The previous prime is 809804622919. The next prime is 809804622961. The reversal of 809804622944 is 449226408908.

It is a super-2 number, since 2×809804622944² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 809804622944.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300709 + ... + 1819739.

It is an arithmetic number, because the mean of its divisors is an integer number (66430775922).

Almost surely, 2^809804622944 is an apocalyptic number.

It is an amenable number.

809804622944 is a deficient number, since it is larger than the sum of its proper divisors (784533999184).

809804622944 is a wasteful number, since it uses less digits than its factorization.

809804622944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567798 (or 567790 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 56.

The spelling of 809804622944 in words is "eight hundred nine billion, eight hundred four million, six hundred twenty-two thousand, nine hundred forty-four".